棉蚜外寄生性天敌——卵形异绒螨研究进展  

Advance in Research on Allothrombium ovatum,an Ectoparasitic Natural Enemy of Aphis gossypii

作　　者：段国琪[1] 张战备[1] 张国强[1] 张慧杰[1] 王娇娟[1] 

机构地区：[1]山西省农业科学院棉花研究所,运城044000

出　　处：《棉花学报》2007年第2期145-150,共6页Cotton Science

基　　金：山西省科技厅资助项目(2006031033)

摘　　要：卵形异绒螨(Allothrombium ovatum)是棉蚜(Aphis gossypii)的一种外寄生性天敌。本文报道了该种天敌的生活史;卵、前幼螨、幼螨、若蛹、若螨、成蛹和成螨的发育历期和各种虫态的生活习性和生境;幼螨的寄主和寄主选择性;成、若螨的猎物和成螨的产卵量;棉田卵形异绒螨的来源、扩散及种群动态;棉蚜有翅成蚜携螨的最大负载量和向不同棉田的日迁移量;棉蚜-卵形异绒螨的生态位及其空间格局;卵形异绒螨对棉蚜的寄生作用及控蚜阈值;该种天敌种群密度与棉田海拔、水位、连作时间及栽培方式的关系;杀虫剂种子处理、喷雾和涂茎对棉蚜和卵形异绒螨的选择毒性。提出了卵形异绒螨的应用前景及其保护利用的方法。Allothrornbium ovaturn is a kind of ectoparasitic natural enemy for cotton aphid（Aphis gossypii）, which widely distributes in northern cotton production areas in China. They emerge early with density population, and greatly inhibit the population increase of cotton aphid. In this paper, the results of researches on the biology and ecology of A. ovatum and its sustainable utilization were overviewed. The researches covered the natural enemy＇s life history;the developmental duration of its eggs, prelarva, larva, nymphochrysalis, nymph, preaduh and adult; and its habit and habitats in different developmental stages, hosts for larva, host preference, the prey of adult, nymph and the fecundity of adult：A, ovatum origin, dispersal and population dynamic in the cotton fields; the maximum load of mites for alate（cotton aphid） and the migration numbers;the niche and spatial pattern of Aphis gossypii-A, ovatum ;the effects of larva parasites on aphids and the threshold value of control aphids （A. ovatum） ;the correlation between the population density of the mite and altitude of cotton fields, water table, continuous cultivation time and cultural methods. It contained the selective toxicity of the seed treatment with insecticides, insecticides spraying and painting cotton stems on cotton aphid and A. ovatum as v, ell. Its applying prospect and the metbnds of protecting and utilizing were put forward.

关 键 词：棉蚜 外寄生天敌 卵形异绒螨 研究进展 

分 类 号：S476.3[农业科学—农业昆虫与害虫防治]